Posted by Paul Rusling on January 31, 2018, 12:04 am, in reply to "Re: Longwave"

The problem with 171 was that Allouis 162 would receive interference, so a directional signal must be used on 171. This usually needs at least two masts. This was part of the Delta Radio plan and a treason for the high cost : two masts each with its own platform. A very expensive proposition.